Solving System of Equations Substitution Method

Solve the system of equations by substitution.

-x + y = -13

-8x - 4y = -8 

• (5, 8)

• (5, -8)

• (-5, -18)

• (-5, 8)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

The first step in solving using the substitution method is __________.

• get x by itself

• get y by itself

• get either variable by itself

• add the equations together

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

• (4, 1)

• (1, 4)

• (-2, 0)

• No solution.

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve for the system of equations using substitution.

• (-6, 1)

• (-12, -12)

• (1, -6)

• No solution

• Infinite solutions

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve the system of equations using substitution:

-4x + 4y = 8

y = -2x - 10

• (-4, -2)

• (12, -34)

• (4, -18)

• (-2, -6)

• (-4, 6)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve for x and y (Use Substitution)

• (1,3)

• (-1,-3)

• (-1,3)

• (3,1)

• (1,1)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

What is the first step in solving a system of linear equations by substitution?

• Rewrite each equation in the form y=mx+b

• Solve for x

• Check your answer

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve the following system of linear equations using substitution method.

• No Solution

Tags

CCSS.8.EE.C.8B

What is the solution to the system of linear equations:

-3x + y = -12 and 7x - 6y = 17 ?

Use Substitution Method

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6